using RTCommunicatorBase;
using TLVProtocal;
using UniversalNetFrame451.IO;

namespace AlarmInfoServerSim.Services;

public class InfoSendingService : IInfoSendingService, ITlvProvider, IDisposable
{
    private readonly ILogService _logService;
    private readonly ISharedConfig _sharedConfig;
    private readonly ITlvCommunicatorServer _server;

    private bool _isConnected;
    private bool _isTcpServerOpened;
    private bool disposedValue;

    public InfoSendingService(ILogService logService, ISharedConfig sharedConfig)
    {
        _logService = logService;
        _sharedConfig = sharedConfig;

        _server = TlvFactory.GetTlvServer();
    }

    public event EventHandler<bool>? TcpServerStatusChanged;
    public event EventHandler<(bool, TcpConnection)>? ConnectionChanged;
    public event EventHandler<(ushort, TlvData)>? DataReceived;
    

    public void Open()
    {
        if (_sharedConfig.SelectedIPAddress is null || _sharedConfig.SelectedPort is null)
        {
            _logService.Log("Failed to open Tcp server because IP or Port is not correct");
            return;
        }

        if (!_server.Initialize(this))
        {
            _logService.Log("Failed to initialize Tcp server");
            return;
        }

        if (!_server.Open(_sharedConfig.SelectedIPAddress.ToString(), (ushort)_sharedConfig.SelectedPort.Value))
        {
            _logService.Log($"Failed to start TCP server in {_sharedConfig.SelectedIPAddress.ToString()}:{_sharedConfig.SelectedPort.Value}");
            return;
        }

        _isTcpServerOpened = true;
        TcpServerStatusChanged?.Invoke(null, _isTcpServerOpened);
    }

    public void Close()
    {
        _server.Dispose();
        _isTcpServerOpened = false;
        TcpServerStatusChanged?.Invoke(null, _isTcpServerOpened);
    }

    public void Send(byte tag, ST_ALARM alarm)
    {
        if (!_isTcpServerOpened || !_isConnected)
        {
            _logService.Log("Cannot send information due to deactivated Tcp server or disconnected status");
            return;
        }

        if (!_server.Send(tag, alarm))
        {
            _logService.Log("Cannot send information due to unknown reason");
        }
    }

    public void Connected(TcpConnection connection)
    {
        _isConnected = true;
        ConnectionChanged?.Invoke(null, (_isConnected, connection));
    }

    public void Disconnected(TcpConnection connection)
    {
        _isConnected = false;
        ConnectionChanged?.Invoke(null, (_isConnected, connection));
    }

    public void Received(TlvData data)
    {
        if (data.RawData is null || data.RawData.Length == 0)
        {
            _logService.Log("Received RawData is null");
            return;
        }

        if (data.Tag == 1)
        {
            DataReceived?.Invoke(null, (data.Tag, data));
        }
    }

    public TlvData RequestReply(TlvData tlvData)
    {
        throw new NotImplementedException();
    }

    protected virtual void Dispose(bool disposing)
    {
        if (!disposedValue)
        {
            if (disposing)
            {
                // TODO: dispose managed state (managed objects)
                _server.Dispose();
                _isTcpServerOpened = false;
            }

            // TODO: free unmanaged resources (unmanaged objects) and override finalizer
            // TODO: set large fields to null
            disposedValue = true;
        }
    }

    // // TODO: override finalizer only if 'Dispose(bool disposing)' has code to free unmanaged resources
    // ~InfoSendingService()
    // {
    //     // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
    //     Dispose(disposing: false);
    // }

    public void Dispose()
    {
        // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
        Dispose(disposing: true);
        GC.SuppressFinalize(this);
    }
}